Platon is a HTML5, responsive and mobile-friendly theme.
It is the default theme for the Opigno LMS distribution and includes many styles specifically for Opigno.
Installation notes
7.3.x branch
Platon 3.x splits the page layout in smaller templates, allowing easier extension for sub themes.
Update from 7.2.x to 7.3.x
Replace all files as you usually would, then make sure to clear your cache. If you already created a sub theme for 2.x, consider updating it to using the 3.x logic. It will not break, however. Your sub theme will still look fine.
8.x.1 branch
This theme is for Drupal 8 version of Opigno.
This theme is sponsored by Connect-i.
Graphical design by Crayonoir.